7212640

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:815

約数の個数: 48

約数和(自身を含む): 17342640

約数和(自身を除く): 10130000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 739, 976, 1220, 1478, 1952, 2440, 2956, 3695, 4880, 5912, 7390, 9760, 11824, 14780, 23648, 29560, 45079, 59120, 90158, 118240, 180316, 225395, 360632, 450790, 721264, 901580, 1442528, 1803160, 3606320, 7212640]

約数ペア:

[(1, 7212640), (2, 3606320), (4, 1803160), (5, 1442528), (8, 901580), (10, 721264), (16, 450790), (20, 360632), (32, 225395), (40, 180316), (61, 118240), (80, 90158), (122, 59120), (160, 45079), (244, 29560), (305, 23648), (488, 14780), (610, 11824), (739, 9760), (976, 7390), (1220, 5912), (1478, 4880), (1952, 3695), (2440, 2956)]